Solve: + ⁺0 + ⁻2 - ⁺8.
Solve: - ⁺1 + ⁺2 X - ⁺8.
Solve: - ⁺0 + ⁻3 X - ⁺9 + ⁺5
Solve: - ⁺0 + ⁺3 - ⁺11 + ⁺12
Coefficient of x² in 4x³ + 3x² - x + 1 is:
